package interface_;

public class Test {
    public static void main(String[] args) {
        Phone phone = new Phone();
//        Camera camera = new Camera();
//
//        Computer computer = new Computer();
//        computer.work(phone);
//        System.out.println("=========");
//        computer.work(camera);
        t(phone);

    }
    public static void t(UsbInterface usbInterface){
        usbInterface.start();
        usbInterface.end();

    }
}
